What is wrong with my theory about universe expanding.

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Discussion Overview

The discussion revolves around a proposed theory regarding the expansion of the universe, specifically relating to the concept of dark energy. The initial post presents a personal model based on observations of oil in a frying pan, suggesting that temperature variations in space could influence the expansion of the universe. Participants engage with this idea, exploring its implications and contrasting it with established scientific understanding.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • The original poster suggests that energy from exploding stars or colliding galaxies could increase the temperature of empty space, potentially pushing matter apart until gravity counteracts this effect.
  • One participant argues that the temperature of space is approximately 3K and decreasing, indicating that massive objects do not significantly contribute to this temperature in a way that would affect expansion.
  • This same participant references General Relativity, stating that energy density historically slowed expansion due to gravity, contrasting with the current acceleration attributed to dark energy.
  • Another participant critiques the appropriateness of the forum for such a theory, implying that the discussion may not be suitable for the platform.
  • A later reply questions the simplicity of the proposed theory, noting that if dark energy exists, it is hypothesized to have been present since the Big Bang or shortly thereafter.

Areas of Agreement / Disagreement

Participants do not reach a consensus. There are competing views regarding the nature of dark energy and its role in the expansion of the universe, with some participants challenging the initial theory and others providing context from established scientific principles.

Contextual Notes

The discussion includes assumptions about the relationship between temperature and expansion, as well as the role of gravity and energy density, which remain unresolved. The applicability of the frying pan model to cosmic phenomena is also questioned.

bydie
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Hey all,
Just to make it clear I am in no way a scientist or physicist but a mere space enthusiast.
Yesterday I noticed when I was making some lunch that oil in my frying pan starts to ''run away'' from the center of pan towards outer side when heat gets just a little bit higher, since pan is covered in the most slippery thing on Earth, teflon, it occurred to me that I can use that as a model to simulate 0 gravity and vacuum in a 2d form of observing. I added small crunches and the effect was exactly the same, the hotter the center was, the ''particles'' would run away from center faster. So here comes the theory about what dark energy might be. A simple remnant of energy outbursts from exploding stars or colliding galaxies increase temperature of empty space. Is it possible that that small amount of heat is enough to push everything apart until the point where that heat is conflicted with gravity and gravity wins? For that to be slightly less complicated for you to understand since I am having hard time to explain that mess in my head, think about matter in space as one thing, let it be A, and empty space as other thing, the B. B expands on itself because it is slowly heating thus ''carrying'' the A away from each other. Gravity is stronger and it overcomes that heat but bound to matter and it's reach dissipates with distance. Disprove me and let me carry on with my regular life please ^^
Thanks
 
Space news on Phys.org
A simple remnant of energy outbursts from exploding stars or colliding galaxies increase temperature of empty space.
This temperature is about 3K, and decreasing. Stars and other massive objects do not contribute in a significant way. In General Relativity, such an energy density slows expansion due to gravity (something you do not have in your pan in a significant way). As a result, in the early universe (where gravity<->energy density did win), expansion slowed down. Currently, in our cold universe, dark energy wins, and expansion accelerates.
 
The biggest problem is posting it on the wrong website.
 
[QUOTE So here comes the theory about what dark energy might be. A simple remnant ...][/QUOTE]

could be...but not so 'simple'. If dark energy exists at all, it is hypothesized it was present at the big bang or shortly after...

try reading a bit here:

http://en.wikipedia.org/wiki/Dark_energy
 

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